P16_096.PDF
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Chapter 16 - 16.96
96. The distance from the relaxed position of the bottom end of the spring to its equilibrium position when
the body is attached is given by Hooke’s law: ∆
x
=
F/k
=(0
.
20kg)(9
.
8m
/
s
2
)
/
(19N
/
m) = 0
.
103 m.
(a) The body, once released, will not only fall through the ∆
x
distance but continue through the
equilibrium position to a “turning point” equally far on the other side. Thus, the total descent of
the body is 2∆
x
=0
.
21 m.
(b) Since
f
=
ω/
2
π
, Eq. 16-12 leads to
f
=
1
2
π
k
m
=1
.
6Hz
.
(c) The maximum distance from the equilibrium position is the amplitude:
x
m
=∆
x
=0
.
10 m.
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P16_009.PDF
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P16_002.PDF
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